not — Easy Playground

Logical NOT operator; inverts a boolean value

Python Playground

print(not True)
print(not False)

# Negating conditions
x = 5
if not x > 10:
    print("x is not greater than 10")

# Checking absence
fruits = ["apple", "banana"]
if "cherry" not in fruits:
    print("No cherry available")

# not with falsy values
print(not 0)
print(not "")
print(not None)
print(not [])

Output

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'not' returns True if the value is falsy, False if truthy. It always returns a boolean, unlike 'and' and 'or'.

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

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